Improvement in saw-table for sawing irregular forms



.PETERS. PHOTO-LITHOGRAPNER, WASHINGTON. D. C.

GARDNER A.

` ibdtml gmit-ra @met @inline i WATKINS, OF CAVENDISH,\VERMONT,'ASSIGNOR TO EIIlilSELFl AND CALVIN SQGREENWOOD, OF GARDNER, MASSACHUSETTS.

Leners Parent N0.1oe,oo6, ma August c, 1870. e

IMPROVEMENT IN SAW-TABLE PoR SAWING IRREGULAR roms.

' `'.'lhe Schedule referred to ijf these Letters Patent and making part of the same.

To all'whomz't may concern Be it known thatI, GARDNER A. WATKINs, ofav'- en dish, ProctolsvillePost-ofiice, in the county of Wind- `sor and State of Vermont, have invented aVSawfla-` ble for Sawing Irregular Forms; andI do herebydeclare that the following is a full and exactdescripton thereof', reference being had to the accompanying drawing and to the letters ot' reference marked thereon making a part of this specification.

This invention relates to a new and useful improvei ment in sawing irregular forms, and consists in so cou-V Astructing the hed-plate ot'jigger or band-saws, as -will enable the desired form t'he cut, without previous marking,l or the use ot' pattern or templet.

Inthe accompanying drawinge Figure 1 represents a plan or -top view of my invention, and

Figure 2, a view of the under side of the traveling guide-plate e Similar-lettersof reference indicate corresponding i parts in the drawing.

A represents a saw, of the jigger `or band description, and

B, a bed-plate, through which said saw works.

C represents the traveling guide-plate.

Though the traveling guidefplate C is cut a track,

' a, of the exact curveY or form which it is desired to saw, and on the under side of said traveling guideplate C is cut a channel, b, beingot' the same form or curve, and parallel with said track a..

:Onto the under side of the bedfplatef is viitted av guide-stud, c, said stud working into and* being of the saine diameter as the` channel b'.

Into the bed-plate B is 'formed an irregular channel, d.. f v

The curves forming this irregular channel are described by afixed point in the traveling guide-plate, as at c, (see iig. 1,)' when said traveling guide-plate is moved to pass the'saw through the form or scroll itis desired to cut.

Fitted to the under side of the traveling guide-plate Cisa stud, f, of a diameter' equal tothe width of the vchannel d. This stud f enters into the channel d. e l t Now, it will be seen that, when the traveling guideplate C is moved in such manner as to describe the form orscroll it is desired to acut, the stud c will travel through the channel b, and the studf will travel through the irregular channel il.

i The. `traveling guide-plate C, being thusv confined' and 'limited in its movement to the direction given it bysaid channels, it is obvious that it cannot be moved in any other direction, and hence, when Va piece of' sequent dressing down to proper size, so that, in all manufactories where large quantities of irregular forms' are sawn of a given pattern, as, for instance, chair manufactories, a great saving in time and expense is attained. A e 1 Having thus described my invention, v

'What I claim as new, and desire to secure by Letters Patent, is-

The bed B, provided with the pin c and 'groove d, in combination with the movable table C, provided with the pin f and groove b, substantiallyas described and for the purpose set forth.,

G. A. WATKIN S. vW'itnesses:

HERMAN L. WA'MENBERG,

G. M. PLYMPTON. 

